butknee 

An extremely obese person's knees that are exposed and create a likeness to a butt view from the layers of extra skin that dimple and come together while standing or walking or the posterior image created when an extremely obese person is standing still and wearing shorts or a skirt

Hey Man did you see the Butknees on that whale lady on the escalator as we went to baggage claim??

Yah, her knees were like a bad fat ass.......cover that up! That should be illegal.

butknee by lunapule July 27, 2009

bumknee 

The act of sliding one's penis in between the back of a bent, sweaty, knee.

This bitch gave me the craziest bumknee after her workout...Amazing!

bumknee by Chris "Backstreet" Massaroni April 29, 2011

Buttknee 

The anatomical marvel when a human being has his or her knees located in his or her butt.

The baseball team sat down when they were told to take a knee; they must have buttknees.

Buttknee by Walker Ward August 6, 2012

buttnee

when you have Acne on your ass

Her ass is nasty, its covered in buttnee!

buttnee by crazyfock November 5, 2003

buttneezies 

A naked selfie taken and sent to an admirer.

Was up with some of them buttneezies.

buttneezies by Sitting here bored January 18, 2017

buttknee 

A spotty ass also known as buttknee, or in a more descriptive way, acne on your bum that you get from sitting down. This is caused from not smoothing your bum, some are even born with it. Name is Butt Acne

"Your ass is well spotty and bumpy you must have buttknee"

buttknee by BussyBaka69 January 7, 2022

Buttneedle 

The term describing the stinger on bees and wasps.

I made the bees angry and got stabbed by a thousand buttneedle.

Buttneedle by Darrenethis April 4, 2022